QZ3NB-37's specifications are as follows:
Model: QZ3NB-37
Type: Triplex Single Acting Piston pump
Rated power: 37kw
Rated speed: 135 SPM
Suction Inlet : Φ203 mm
Discharge Outlet: Φ76 mm
Weights : 3900 Kg

QZ3NB-75's specifications are as follows:
Model : QZ3NB-75
Type: Triplex Single Acting Piston pump
Rated power: 75kw
Rated speed : 125 SPM
Suction Inlet: Φ152 mm
Discharge Outlet: Φ64 mm
Weights: 6080 Kg

QZ3NB series include QZ3NB-22, QZ3NB-37, QZ3NB-75, QZ3NB-90, QZ3NB-150, QZ3NB-220, QZ3NB-350, QZ3NB-500, QZ3NB-650, QZ3NB-800, QZ3NB-1000, QZ3NB-1300, QZ3NB-1600, QZ3NB-1600H, QZ3NB-2200, QZ3NB-2200H. This series of drilling mud pump combined the advantages of home and abroad drilling mud pumps. The structure has the special features only, The usage is dependable, and the function is good. Come to advanced world standard of 90’s and 20centuries; is oil-field and the industrial and mining establishments choose to use first the drilling mud pump nowadays at home and abroad. QZ3NB series of drillling mud pumps is advanced at structure, revolve steady, weight light, the small volume, low speed, long stroke; Have the well imbedibility; wearing parts of long service life.